Perpendicular from the center to the chord, bisects it!
DE = DF/2 = 12
To find R, use Pyth Th in triangle AOB. ( AB = 10)
10^2 + 14^2 = R^2
100+ 196 = 296 = R^2
In triangle DOE
x^2 + 12^2 = 296
x^2 = 296-144 = 152
x = √152
x = 12.3

6 0

2 years ago

Factorise X Squared +13+12

Norma-Jean [14]

Answer:

$\left(x+1\right)\left(x+12\right)$

Step-by-step explanation:

$x^2+13x+12$

$x^2+12x+1x+12$

$x(x+12)+1(x+12)$

$\left(x+1\right)\left(x+12\right)$

7 0

2 years ago

Cends 36 feet in 2 seconds. Express the rate of the​ parachutist's change in height as a unit rate.

Cends 36 feet in 2 seconds. Express the rate of the parachutist's change in height as a unit rate.